FS-8243 8b088c26fbf4eba3daaacfaa6e29ab765f7321ba breaks perfectly working fec, adding...

diff --git a/src/mod/codecs/mod_opus/mod_opus.c b/src/mod/codecs/mod_opus/mod_opus.c
index 6ce09fe4f4d6830ed69bcb3c8e4677130fdad061..f0685f58da0068dcb5d7f5d48df96bfe4cac5b93 100644 (file)
--- a/src/mod/codecs/mod_opus/mod_opus.c
+++ b/src/mod/codecs/mod_opus/mod_opus.c
@@ -281,6 +281,7 @@ static switch_bool_t switch_opus_has_fec(const uint8_t* payload,int payload_leng
        int nb_silk_frames, nb_opus_frames, n, i; 
        opus_int16 frame_sizes[48];
        const unsigned char *frame_data[48];
+       int frames;
 
        if (payload == NULL || payload_length_bytes <= 0) {
                switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "corrupted packet (invalid size)\n");
@@ -320,6 +321,22 @@ static switch_bool_t switch_opus_has_fec(const uint8_t* payload,int payload_leng
                }
        }
 
+       frames = opus_packet_parse(payload, payload_length_bytes, NULL, frame_data, frame_sizes, NULL);
+       
+       if (frames < 0) {
+               return SWITCH_FALSE;
+       }
+       
+       if (frame_sizes[0] <= 1) {
+               return SWITCH_FALSE;
+       }
+       
+       for (n = 0; n <= (payload[0]&0x4);n++) {
+               if (frame_data[0][0] & (0x80 >> ((n + 1) * (frames + 1) - 1))) {
+                       return SWITCH_TRUE; /*this works only for 20 ms frames now, it will return VAD for 40 ms or 60 ms*/
+               }
+       }
+
        return  SWITCH_FALSE;
 }